Key blade blank



FIG. 1 is a front elevational view of a key blade blank showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is an enlarged scale fragmentary front and bottom perspective view thereof; and,

FIG. 7 is an enlarged scale sectional view taken along line 7—7 of FIG. 1.

The portions in broken lines are for illustrative purpose only and from no part of the claimed design. 

CLAIM The ornamental design for key blade blank, as shown and described. 